CN102738538A - Device for cooling battteries, especially batteries for motor vehicle - Google Patents

Device for cooling battteries, especially batteries for motor vehicle Download PDF

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Publication number
CN102738538A
CN102738538A CN201210110078XA CN201210110078A CN102738538A CN 102738538 A CN102738538 A CN 102738538A CN 201210110078X A CN201210110078X A CN 201210110078XA CN 201210110078 A CN201210110078 A CN 201210110078A CN 102738538 A CN102738538 A CN 102738538A
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CN
China
Prior art keywords
coldplate
heat transfer
transfer mechanism
heat
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201210110078XA
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Chinese (zh)
Other versions
CN102738538B (en
Inventor
D·普林茨
S·克斯特
A·埃梅里希
J·塔尔蒙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hanon Systems Corp
Original Assignee
Visteon Global Technologies Inc
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Publication date
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Publication of CN102738538A publication Critical patent/CN102738538A/en
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Publication of CN102738538B publication Critical patent/CN102738538B/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

A device for cooling batteries, especially batteries for a battery pack (1) for a motor vehicle includes a cooling plate (3) for receiving at least one battery thereon and at least one heat transfer element in heat transfer relationship with the cooling plate (3). A mechanical stress produced by a contact force causes the at least one heat transfer element (4, 8, 10) to thermally abut the cooling plate (3).

Description

Be used to cool off device especially for the battery pack of motor vehicle
Technical field
The present invention relates to be used for the device of cool batteries group, this battery pack is especially for motor vehicle.
Background technology
In the motor vehicle that is driven by motor power and in the motor vehicle of hybrid power driving, it is very important that the accurate thermal of vehicle battery packs is regulated for the mileage of optimizing vehicle.Show that in addition the apparatus for storing electrical energy that uses at present is responsive especially with respect to the Temperature Distribution that changes, and makes under optimum temperature, need pay and makes great efforts to move battery pack greatly.
This requires operative installations to come the cool batteries group, is also referred to as heat abstractor or battery pack cooler hereinafter, thereby guarantees that when battery pack is moved the used heat that produces removes from battery pack, and battery pack is in harmonious proportion the temperature levels that limits to evenly.
DE 10 2,008 034 887 A1 openly are used to have the cooling device of the battery pack of several cool batteries, and it is provided with the coldplate that refrigerant can pass through, and battery cell heat conduction is connected to said coldplate.
In addition, the open electrochemical energy storage element of DE 10 2,007 037 416 A1 comprises nail a plurality of flat cell groups on it each other, and it is provided with overcoat, and energy storage unit can cool off above that.
The device of known stored electric energy among DE 10 2,007 050 400 A1; Especially for motor vehicle; Comprise nail a plurality of flat cell groups on it each other; The parallel basically layout of their flat sides, flat cell group form the nail part, and cooling element is between the adjacent flat battery pack of nail part.Cooling element is provided with opening, and heat transfer element inserts in the opening.
The other scheme of the problem of the battery pack of solution cooler motor-car is disclosed in DE 10 2,007 063 176A1.Propose the heat-conducting plate of mediation battery pack, battery pack is provided with several independent battery pack, and they are connected in parallel to each other and/or tandem tap, and heat transfer is connected to heat-conducting plate.For this reason, the groove structure of heat-conducting medium is arranged in the heat-conducting plate.
Come the said scheme of the problem of conditioner motor-car battery pack to show the following fact through cooling: to have multiple design to carry out the battery pack cooling.
Summary of the invention
The object of the invention is set up and is used to cool off the device especially for the battery pack of motor vehicle, thereby provides the good heat conduction of battery cell and cooling device to be connected, and guarantees the High-efficient Production and the assembling of heat abstractor.
This problem solves through the device that has according to the characteristic of claim 1.Provide other embodiment in the dependent claims.
Especially, problem of the present invention solves through the device that is used to cool off especially for the battery pack of motor vehicle, and it is provided with coldplate with the location with receive battery pack, and simultaneously, heat absorbs equably on the whole surface of coldplate and distributes.In addition, the heat transfer mechanism of cooling device is provided with the heat transfer mechanism of thermo-contact coldplate under mechanical tension, between heat transfer mechanism and coldplate, to realize the heat transfer of maximum possible.
Except practical cooler, the device that is used for the cool batteries group according to the present invention comprises other assemblies of the thermo-contact of having to basically produce with battery cell.This is based on the temperature that is independent of environment temperature, battery cell with the firm heat transfer of multiple other parameters of having to guarantee in the whole length of life of motor vehicle.
Prior art is through the plastic clip frame, for example solve this problem through the closed connection of power.
According to notion of the present invention, a kind of assembly is realized conducting heat and contacting.In flexible cooling tube, this depends on that contained fluid can be refrigerant flexible pipe or refrigerant hose, and heat-carrying agent is guided on the inboard of flexible pipe.Excess pressure on the ambient pressure is leading in cooling tube, thereby makes the cooling tube distortion, makes cooling tube be depressed into coldplate or heat-carrying plate or battery cell respectively.
The present invention comes advantageously to realize through following manner: the heat transfer mechanism of between flexible, resilient member that produces thrust and coldplate, locating, wherein heat transfer mechanism and contacting with heat-conducting mode of coldplate produce through mechanical stress.
In a preferred embodiment of the invention, that heat transfer mechanism is placed on is flexible, between resilient member and the coldplate to produce mechanical tension, flexible, resilient member is constructed to apply thrust.Preferably, flexible, resilient member is set to rubber-shape or flexible member.
Particularly advantageous embodiment according to notion of the present invention is to use flexible cooling tube or flexible gel cooling mat as heat transfer mechanism.Experience shows that the characteristic of flexible cooling tube and flexible gel mat is to make surface imperfection place level, therefore can carry out very good zone contact, therefore, can carry out very good heat conduction and connect.Particularly advantageously be, cooling tube performance dual-use function-at first, the function of heat transfer mechanism, the secondly function of thrust member.
For example many curved spouts material of fiber-reinforcement or cooling water flexible pipe or refrigerant hose material are as hose material.
In particularly preferred embodiments, cooling tube is set at the mixing flexible pipe with sulfureted coldplate.
The favourable design implementation scheme that heat transfer mechanism contacts with coldplate is through the mechanical fasteners member, because cooling water pipe or flat tube bolt coldplate.
Selectively or generally speaking, carry out the closed connection of power through heat transfer mechanism bolt coldplate, heat transfer mechanism can also use the suitable bonding of selection adhesively to combine coldplate, thereby guarantees enough heat transfers.
The other embodiment of using cooling tube and flexible gel mat is under mechanical stress cooling tube and flexible gel mat to be placed between battery housing bottom or supporting bracket and the coldplate, makes it possible to achieve the special excellent contact of heat transfer mechanism and coldplate.
For other embodiment of the present invention, cooling tube is out of shape by this way, and this mode is that coldplate, cooling water pipe or flat tube are depressed into battery cell through the pressure in the flexible pipe.
In addition; Particularly advantageous is that heat transfer mechanism is arranged between the resilience compensating element, and coldplate that produces thrust; The frame that wherein has clamping element is configured to support coldplate, and said coldplate is constructed to when the said heat abstractor of assembling, can sandwich in the said clamping element.
Therefore, notion of the present invention is the heat transfer mechanism on the battery pack contact coldplate, and for Temperature Distribution, coldplate also plays the effect of formation plate.The other function of coldplate is to receive and support battery pack, and the suitable static size of this plate that can be cooled is carried out, and makes the battery pack of phase counterweight supported suitably and fix.
According to notion, heat transfer mechanism and being connected through thrust of coldplate produce under mechanical stress, to obtain most probable heat transfer.
Description of drawings
The other purpose of embodiment of the present invention, feature and advantage describe below and combine will become the accompanying drawing obviously from the example of embodiment, and be wherein as follows:
Fig. 1 is the heat abstractor with flexible refrigerant flexible pipe,
Fig. 2 is the heat abstractor with cooling tube, and said cooling tube is guided between coldplate and the battery housing bottom,
Fig. 3 is the heat abstractor with compensating element,,
Fig. 4 is the heat abstractor with heat transfer mechanism of bolt coldplate,
Fig. 5 is the heat abstractor with several heat transfer mechanisms,
Fig. 6 has the coldplate of bolt and a heat abstractor of housing bottom,
Fig. 7 is the heat abstractor with the coldplate that can inner sandwich.
Embodiment
Fig. 1 illustrates the heat abstractor with flexible cooling tube 8.Cooling tube 8 is meant flexible refrigerant flexible pipe or refrigerant hose, and its wall leans against on the adjacent surface of solids flexibly, therefore can on the zone on said surface, carry out the zone contact.Obviously visible, cylindrical pipe only carries out linearity with flat surface and contacts.Battery pack 1 in the battery housing 2 leans against on the coldplate 3, and coldplate 3 rests on the cooling tube 8.Cooling tube 8 is carried by battery housing bottom 7.Arrow as among Fig. 1 is schematically shown, and about its position with respect to coldplate 3, cooling tube 8 does not lead, make cooling tube 8 can be between battery housing bottom 7 and coldplate 3 flexible placement, for example serpentine shape.The thrust of cooling tube 8 realizes through the excess pressure in the cooling tube 8 of projecting pressure.
By contrast, in Fig. 2 a, cooling tube 8 is positioned in the battery housing bottom 7 with the mode of guiding, and battery housing bottom 7 is set so that the edge of its rise is formed for the guiding piece of cooling tube 8.The coldplate 3 that rests on the cooling tube 8 is provided with the edge corresponding to the edge of battery housing bottom 7, makes coldplate 3 and battery housing bottom 7 long-range each other shapes mesh.According to the heat transfer task, the be cooled refrigerant or the refrigerant of carrier format of cooling tube 8 passes, and from insulation, production and cost reason, battery housing bottom 7 is processed by plastic material, and coldplate 3 is made of aluminum.Therefore, coldplate 3 can be realized heat conduction very well in the surface, and the smooth possible punctual thermal peak load that is caused by independent battery cell.In addition, cooling tube 8 is leaned against on the coldplate 3 and can carry out good heat transmission from coldplate 3 to cooling tube 8.
Fig. 3 illustrates the heat abstractor that is provided with coldplate 3.The heat transfer mechanism that is set at cooling water pipe 4, cooling tube 8 or flat tube 10 is pressed against on the coldplate 3 on the resilience compensating element, 9.The heat conduction paper tinsel or the heat conduction paste that are arranged between the surface of connection can improve heat transfer mechanism in addition, cooling water pipe 4, and the heat conduction between cooling tube 8 and flat tube 10 and the coldplate 3 connects, and the heat conduction between coldplate 3 and the battery pack 1 connects.
In the other embodiment of Fig. 3, Fig. 4 illustrates coldplate 3 and heat transfer mechanism 4,8,10 and is configured to the connection that the clamp structure 5 of bolt comes bolt to carry out through use.Heat transfer mechanism is preferably set to flat tube 10, therefore advantageously uses bolt to connect coldplate 3.Under each situation, battery pack 1 can't connect formation plate securely, because battery pack replacedly and is easily constructed with removing.
Once more, through the mode of heat conduction paper tinsel or heat conduction paste, be enhanced from the heat transfer of coldplate 3 to cooling water pipe 4 or clamp structure 5.
Fig. 5 illustrates heat abstractor, and it is provided with for example cooling water pipe 4 of several heat transfer mechanisms, cooling tube 8 or flat tube 10, and the heat transfer mechanism of guiding is provided with groove-shape depression with the guiding heat transfer mechanism in the supporting bracket 6.Supporting bracket 6 is come bolt coldplate 3 through the clamp structure 5 that is set at bolt; And the size of the guiding piece of heat transfer mechanism is selected as and makes the heat transfer mechanism that under stress, is arranged between supporting bracket 6 and the coldplate 3 be depressed into coldplate 3 in the supporting bracket 6, makes that producing favourable heat transfer regulates.Battery pack 1 directly is placed on the coldplate 3, as previously mentioned.Therefore, supporting construction is depressed into coldplate 3 with heat transfer mechanism.
At the heat abstractor of the coldplate that has bolt shown in Fig. 63 with battery housing bottom 7.In this embodiment, coldplate 3 from the top bolt to battery housing bottom 7.Be similar to the embodiment of Fig. 5, heat transfer mechanism 4,8,10 are limited between coldplate 3 and the battery housing bottom 7.
The special easy-on embodiment that between coldplate shown in Fig. 73 and heat transfer mechanism 4, connects.Shown in embodiment in, the frame 13 that receives coldplate 3 is constructed to be supplemented with clamping element 14.As shown in Figure 7, coldplate 3 inserts in the frame 13 also fixing in a side, moves along the direction of arrow up to coldplate 3 in an other side under stress, to embed in the position in the clamping element 14. Heat transfer mechanism 4,8,10 are supported on the compensating element, 9 that is constructed to the reversible element of elasticity, and it applies in the position of installing and makes progress thrust to heat transfer mechanism 4,8,10 and sandwich coldplate 3, makes and realizes very good heat transfer.
Compensating element, 9 can also become the hydraulic action compensating element,, for example its polymeric material that is constructed to gel mat or water bed or has rebound performance.
List of numerals
1 battery pack
2 battery housings
3 coldplates
4 cooling water pipes, heat transfer mechanism
5 clamp structures, bolt
6 supporting brackets
7 battery housings bottom
8 cooling water pipes, heat transfer mechanism
9 compensating element,s
10 flat tubes, heat transfer mechanism
11 connect adapter
12 have the groove of end cap
13 frames
14 clamping elements

Claims (8)

1. be used to cool off the device of battery pack (1) especially for motor vehicle; This device is provided with coldplate (3); This coldplate is used for ground, location and receives said battery pack and uniform heat absorption and distribution on the whole surface of said coldplate (3), it is characterized in that the heat transfer mechanism (4 of cooling device; 8,10) the said coldplate of thermo-contact (3) under mechanical stress.
2. device as claimed in claim 1 is characterized in that, in order to produce said mechanical stress, said heat transfer mechanism (4,8,10) is arranged between flexible, the resilient member and said coldplate (3) that applies thrust.
3. device as claimed in claim 1 is characterized in that, as heat transfer mechanism, cooling tube (8) flexible, pressurization is arranged on said coldplate (3) and goes up applying thrust to said coldplate (3), and removes heat from said coldplate (3).
4. device as claimed in claim 3 is characterized in that, said flexible cooling tube (8) is constructed to have the mixing flexible pipe of sulfureted coldplate (3).
5. like each described device in the claim 1 to 4, it is characterized in that said heat transfer mechanism (4,8,10) is through the said coldplate of mechanical fasteners member (5) bolt (3).
6. like each described device in the claim 1 to 5, it is characterized in that said in addition heat transfer mechanism (4,8,10) also adhesively combines said coldplate (3).
7. like each described device in the claim 1 to 6, it is characterized in that said heat transfer mechanism (4,8,10) is arranged between battery housing bottom (7) or supporting bracket (6) and the said coldplate (3) under stress.
8. like each described device in the claim 1 to 7; It is characterized in that said heat transfer mechanism (4,8; 10) be arranged between resilience compensating element, (9) and the said coldplate (3) to produce said thrust; Wherein, the frame (13) with clamping element (14) is configured to support said coldplate (3), and said coldplate (3) is constructed to when the assembling heat abstractor, can sandwich in the said clamping element (14).
CN201210110078.XA 2011-04-14 2012-04-13 Device for cooling battteries, especially batteries for motor vehicle Active CN102738538B (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102011002064 2011-04-14
DE102011002064.0 2011-04-14
DE102011002133 2011-04-18
DE102011002133.7 2011-04-18
DE102012101076.3 2012-03-26
DE201220101076 DE202012101076U1 (en) 2011-04-14 2012-03-26 Device for cooling batteries, in particular for motor vehicles

Publications (2)

Publication Number Publication Date
CN102738538A true CN102738538A (en) 2012-10-17
CN102738538B CN102738538B (en) 2017-01-11

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US (1) US9647251B2 (en)
JP (1) JP5497100B2 (en)
CN (1) CN102738538B (en)
DE (1) DE202012101076U1 (en)

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US9647251B2 (en) 2017-05-09
DE202012101076U1 (en) 2012-04-19

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